Employee Retirement Plans

12 Months Ended

Sep. 30, 2021

Retirement Benefits [Abstract]

Employee Retirement Plans

EMPLOYEE RETIREMENT PLANS

DEFINED CONTRIBUTION PLANS

The Company has a 401(k) defined contribution plan covering employees in the U.S. The related expense totaled $8,962, $7,658 and $6,698 for the fiscal years ended September 30, 2021, 2020 and 2019, respectively. The Company’s United Kingdom and Singapore subsidiaries also make immaterial contributions to retirement plans that function as defined contribution retirement plans.

PENSION OBLIGATIONS IN FOREIGN JURISDICTIONS

The Company has defined benefit plans covering employees in Japan, South Korea, and France as required by local law. These plans are unfunded. A summary of these combined plans are:

	September 30,
	2021			2020
Projected benefit obligation	$	12,176		$	11,627
Accumulated benefit obligation	9,006			8,680
Pension cost included in Accumulated other comprehensive income (loss), net of tax	(927)			(764)
Weighted average discount rate	1.32		%	1.32		%
Weighted average rate of increases in future compensation levels	2.96		%	3.01		%

Benefit costs for the combined plans were $1,812, $1,403 and $1,345 in fiscal years 2021, 2020 and 2019, respectively, consisting primarily of service costs. Net service costs are included in Cost of sales and Operating expenses, and all other costs are recorded in the Other expense, net in our Consolidated Statements of (Loss) Income. Estimated future benefit payments are as follows:

Fiscal Year	Amount
2022	$	446
2023	570
2024	568
2025	1,077
2026	842
2027 to 2031	5,190